Bolian Filtration Solutions Co., Ltd.

Yarn Quality Requirements for Weaving

Weaving is the main process that affects the filter cloth quality. To improve product quality, it is important to improve the weaving quality, reducing broken ends and broken picks, clear openings, uniform organization, and uniform cloth surface. Weaving quality requirements for raw yarns can be summarized in the following aspects.

  • Requirements for Yarn Strength

Appropriate yarn strength is essential for weaving production, especially in high-speed, high-tension shuttleless weaving. Insufficient yarn strength will cause broken ends, broken picks, shade bar, and other defects. Most yarn breaks are due to weak links in yarn strength. Therefore, it's important to ensure that sizing has enough reinforcement rate and uniform strength.

  • Requirements for Yarn Defects

Defects such as chopped filling, slub, nep, and stains will affect the filter fabric quality and result in loom downtime. So It is essential to minimise yarn defects to meet the required quality standards.

  • Requirements for Yarn Hairiness

The number of yarn hairiness has a decisive effect on the adhesion and entanglement of warp yarn during weaving.

Therefore, yarn hairiness should be strictly controlled to reduce the increase and regeneration of hairiness, especially the number of long hairiness of 3mm and above.

  • Requirements Yarn Tension

To guarantee the uniform fabric surface, reduce defects, and improve production efficiency, it's vital to ensure uniform yarn tension, particularly the sheet yarn.


All in all, high-quality yarn is a critical factor in producing high-quality filter fabrics. Bolian maintains long-term, stable cooperation with premium yarn suppliers. We import high-quality yarn to meet the required specifications for filter cloth, ensuring the quality of filter cloth.